<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
    <meta name="apple-themes-web-app-capable" content="yes">
    <meta name="apple-mobile-web-app-capable" content="yes">
    <meta name="apple-mobile-web-app-status-bar-style" content="black">
    <meta name="format-detection" content="telephone=no, email=no">
    <title>关于快答答题</title>
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
        }
        
        body {
            background: linear-gradient(135deg, #f5f7fa 0%, #e6f0ff 100%);
            color: #333;
            line-height: 1.6;
            min-height: 100vh;
        }
        
        /* 标题栏样式 */
        #header {
            background: linear-gradient(90deg, #2575fc, #6a11cb);
            padding: 15px 20px;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        }
        
        .header_con {
            display: flex;
            align-items: center;
            max-width: 800px;
            margin: 0 auto;
            position: relative;
        }
        
        .header_con a {
            display: flex;
            align-items: center;
            text-decoration: none;
            color: white;
            font-size: 18px;
            transition: all 0.3s ease;
            padding: 8px;
            position: absolute;
            left: 0;
        }
        
        .header_con a:hover {
            transform: translateX(-5px);
        }
        
        .header_con a span {
            display: inline-block;
            width: 24px;
            height: 24px;
            background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="white"><path d="M15.41 16.59L10.83 12l4.58-4.59L14 6l-6 6 6 6 1.41-1.41z"/></svg>') no-repeat center;
            background-size: contain;
        }
        
        .top_tit {
            flex: 1;
            text-align: center;
            font-size: 18px;
            font-weight: 600;
            color: white;
            text-shadow: 0 1px 2px rgba(0,0,0,0.1);
        }
        
        /* 主内容区 */
        .about_box {
            max-width: 800px;
            margin: 30px auto;
            padding: 20px;
            display: flex;
            flex-direction: column;
            align-items: center;
        }
        
        /* Logo区域 */
        .logo_MF {
            text-align: center;
            margin-bottom: 40px;
            animation: float 3s ease-in-out infinite;
        }
        
        @keyframes float {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-10px); }
        }
        
        .logo_MF img {
            width: 120px;
            height: 120px;
            border-radius: 24px;
            object-fit: cover;
            box-shadow: 0 10px 25px rgba(37, 117, 252, 0.3);
            border: 3px solid #fff;
            margin-bottom: 15px;
        }
        
        .logo_MF p {
            font-size: 22px;
            font-weight: 700;
            color: #2c3e50;
            background: linear-gradient(90deg, #2575fc, #6a11cb);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            letter-spacing: 1px;
        }
        
        /* 选项区域 */
        .sel_box {
            width: 100%;
            max-width: 500px;
            background: white;
            border-radius: 16px;
            padding: 20px;
            margin-bottom: 15px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
            cursor: pointer;
            position: relative;
            overflow: hidden;
        }
        
        .sel_box:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 25px rgba(37, 117, 252, 0.15);
        }
        
        .sel_box::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 5px;
            height: 100%;
            background: linear-gradient(to bottom, #6a11cb, #2575fc);
        }
        
        .word_title {
            font-size: 18px;
            font-weight: 600;
            color: #2c3e50;
            display: flex;
            align-items: center;
        }
        
        .word_title::before {
            content: "";
            display: inline-block;
            width: 8px;
            height: 8px;
            background: #2575fc;
            border-radius: 50%;
            margin-right: 12px;
        }
        
        .bb_word {
            font-size: 16px;
            color: #7f8c8d;
            background: rgba(37, 117, 252, 0.1);
            padding: 5px 12px;
            border-radius: 20px;
        }
        
        .enter_jt {
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #7f8c8d;
            transition: all 0.3s ease;
        }
        
        .sel_box:hover .enter_jt {
            color: #2575fc;
            transform: translateX(5px);
        }
        
        .enter_jt::after {
            content: "→";
            font-size: 20px;
            font-weight: bold;
        }
        
        /* 底部信息 */
        .tk_box {
            width: 100%;
            max-width: 500px;
            text-align: center;
            margin-top: 40px;
            padding: 20px;
            color: #7f8c8d;
            font-size: 14px;
            line-height: 1.8;
        }
        
        .tk_box a {
            color: #2575fc;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
            position: relative;
        }
        
        .tk_box a::after {
            content: "";
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 1px;
            background: #2575fc;
            transition: width 0.3s ease;
        }
        
        .tk_box a:hover::after {
            width: 100%;
        }
        
        .tk_box a:hover {
            text-shadow: 0 0 5px rgba(37, 117, 252, 0.3);
        }
        
        .tk_box p:first-child {
            margin-bottom: 15px;
        }
        
        /* 动画效果 */
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        .logo_MF {
            animation: fadeIn 0.6s ease-out;
        }
        
        .sel_box:nth-child(2) {
            animation: fadeIn 0.6s ease-out 0.1s forwards;
            opacity: 0;
        }
        
        .sel_box:nth-child(3) {
            animation: fadeIn 0.6s ease-out 0.2s forwards;
            opacity: 0;
        }
        
        .sel_box:nth-child(4) {
            animation: fadeIn 0.6s ease-out 0.3s forwards;
            opacity: 0;
        }
        
        .sel_box:nth-child(5) {
            animation: fadeIn 0.6s ease-out 0.4s forwards;
            opacity: 0;
        }
        
        .tk_box {
            animation: fadeIn 0.6s ease-out 0.5s forwards;
            opacity: 0;
        }
        
        /* 响应式设计 */
        @media (max-width: 480px) {
            .about_box {
                padding: 15px;
            }
            
            .logo_MF img {
                width: 100px;
                height: 100px;
            }
            
            .logo_MF p {
                font-size: 18px;
            }
            
            .sel_box {
                padding: 15px;
            }
            
            .word_title {
                font-size: 16px;
            }
        }
    </style>
</head>
<body>
    <!-- 标题栏 -->
    <header id="header">
        <div class="header_con">
            <a href="javascript:history.go(-1);">
                <span></span>
            </a> 
            <div class="top_tit">关于快答答题</div>
        </div>
    </header>
    
    <!-- 主内容区 -->
    <div class="about_box">
        <!-- Logo区域 -->
        <div class="logo_MF">
            <img src="img/logo_register.png" alt="快答答题 Logo">
            <p>快答答题&nbsp;1.2.2</p>
        </div>	
        
        <!-- 功能选项 -->
        <div class="sel_box" onclick="window.location.href='function.html';">
            <div class="word_title">功能介绍</div>
            <div class="enter_jt"></div>
        </div>
        
        <div class="sel_box" onclick="window.location.href='notice.html';">
            <div class="word_title">系统通知</div>
            <div class="enter_jt"></div>
        </div>
        
        <div class="sel_box" onclick="window.location.href='help.html';">
            <div class="word_title">帮助中心</div>
            <div class="enter_jt"></div>
        </div>
        
        <div class="sel_box" onclick="window.location.href='update.html';">
            <div class="word_title">版本更新</div>
            <div class="word_title bb_word">1.2.2</div>
        </div>
        
        <!-- 底部信息 -->
        <div class="tk_box">
            <p>
                <a href="#">使用条款</a>和
                <a href="#">隐私政策</a>
            </p>
            <p>copyright © 2016-2023 lingdu</p>
            <p>零度原创技术有限公司支持</p>
        </div>
    </div>

    <script>
        // 添加点击效果
        document.querySelectorAll('.sel_box').forEach(box => {
            box.addEventListener('click', function() {
                // 添加点击效果
                this.style.transform = 'scale(0.98)';
                
                // 恢复原状
                setTimeout(() => {
                    this.style.transform = '';
                }, 200);
            });
        });
        
        // 添加悬浮效果
        document.querySelectorAll('.sel_box').forEach(box => {
            box.addEventListener('mouseenter', function() {
                this.style.boxShadow = '0 10px 25px rgba(37, 117, 252, 0.2)';
            });
            
            box.addEventListener('mouseleave', function() {
                this.style.boxShadow = '0 5px 15px rgba(0, 0, 0, 0.05)';
            });
        });
    </script>
</body>
</html>